<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>钩子</title>
    <style>
        ul {
            list-style: none;
        }

        ul li {
            position: relative;
        }

        ul li b {
            position: absolute;
            top: 6px;
            left: -15px ;
            width: 10px;
            height: 10px;
            /* background: red; */
            background: url(image/tb1.png) no-repeat;
        }
    </style>
</head>

<body>
    <ul>
        <li><b></b>文字</li>
        <li><b></b>文字</li>
        <li><b></b>文字</li>
        <li><b></b>文字</li>
    </ul>
</body>

</html>